People who vote in elections choose the candidate they think will best represent their interests. Electoral turnouts may decline, as even the dumbest voter realises that nothing much will change and, in any case, the major parties have very similar policies. But this also means that the major political parties will respond, at least rhetorically, to how those interests are expressed. In Britain's case, the clear expression now is that immigration is a problem.
This is not racism, since the immigrants being opposed are mainly white Europeans, rather than black or Asian immigrants as in earlier decades. It is nationalism, the nationalism of an imperialist power that has an implicit deal with the local population to keep their privileges intact.
In the 1980s, the Conservative Party's attacks on trade unions undermined much of the institutional support for racial discrimination in Britain that was given by those unions. A capitalist policy of hiring whoever the boss wanted meant that colour did not enter the calculation as it did before: the boss did not now have to worry about the union objecting on behalf of the existing white workforce. It was this that led the UK to be probably the least racist European country, although that is not saying very much.
This development also meant that those from ethnic minorities could join in the national consensus to defend domestic privileges against outsiders. So even UKIP has non-white members and candidates. Also, despite the Labour Party traditionally getting most ethnic minority votes in the UK, it has had no hesitation in backing an anti-immigration policy, something that dates back more recently to Labour Prime Minister Gordon Brown's infamous 'British jobs for British workers' statement in 2007.
It will not come as a surprise to readers that I will not be voting in the forthcoming UK election on 7 May. Still less, if that were possible, for a party that has issued the following special election mug:
The word 'scum' doesn't seem to be strong enough to describe these people, but it is apt for the ideological dirt or froth bubbling above a reactionary political development.
Tony Norfield, 11 April 2015
 Notes on the background to this statement are set out in 'Gordon Brown's 'British jobs' pledge has caused controversy before', The Guardian, 30 January 2009.